<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
    <button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登入</button>
    <text class="tip-text">登陆后尽享更多权益</text>
	</view>
</template>

<script>
  import {mapMutations,mapState} from 'vuex'
	export default {
		data() {
			return {
				
			};
		},
    computed:{
      ...mapState('m_user',['redirectInfo'])
    },
    methods:{
      ...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
      //用户授权之后，获取用户的基本信息
      getUserInfo(e){
        // console.log(e)
        if(e.detail.errMsg==='getUserInfo:fail auth deny') return uni.$showMsg('您取消了授权')
        console.log(e.detail.userInfo)
        this.updateUserInfo(e.detail.userInfo)
        
        this.getToken(e.detail)
      },
     async getToken(info){
       // 获取code对应值
      const [err,res]= await uni.login().catch(err=>err)
      if(err || res.errMsg!=='login:ok') return uni.$showMsg('登录失败!')
      
      // 准备参数
      const query={
         code: res.code,
         encryptedData: info.encryptedData,
         iv: info.iv,
         rawData: info.rawData,
         signature: info.signature
      }
 
      const {data:loginResult}=await uni.$http.post('/api/public/v1/users/wxlogin',query)
      if(loginResult.meta.status!==400) return uni.$showMsg('登录失败')
      this.updateToken(loginResult)
      this.navigateBack()
      },
      navigateBack(){
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab'){
          uni.switchTab({
            url:this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    }
	}
</script>

<style lang="scss">
.login-container{
  height: 750rpx;
  background-color: #F8F8F8;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  &::after{ 
    content: '';
    display: block;
    height: 40px;
    width: 100%;
    background-color: white;
    position: absolute;
    bottom: 0;
    left: 0;
    border-radius: 100%;
    transform: translateY(50%);
  }
  .btn-login{
    width: 90%;
    background-color: #C00000;
    margin: 15px 0;
    border-radius: 100px;
  }
  .tip-text{
    font-size: 12px;
    color: gray;
  }
}
</style>
